MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Dropper.Agent-7272841-0 and an ML classifier. A critical heuristic identified a VBScript-style decimal array that decodes to a PE payload, indicating the PDF's primary function is to deliver and execute a secondary malicious file. The embedded PE artifact further supports this dropper functionality.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 3
-
VBScript-style decimal byte array decodes to a PE payload critical PDF_VBS_DECIMAL_ARRAY_PE_PAYLOADPDF comment text contains a VB/VBScript-style decimal byte array, such as c(077),c(090), that decodes to a verified Windows PE executable. The rule is gated on a comment-line Array(c(...)) assignment and a valid MZ/PE header to keep false positives low.
-
ClamAV: Pdf.Dropper.Agent-7272841-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Dropper.Agent-7272841-0
-
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGEOne or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
decimal_array_pdf_pe_00000229.exe98459f56556ca0fe82435f4b35c96a8b0be99e4f7277460095d64126eea8381b |
embedded-pe | PDF raw comment decimal-array PE payload at offset 0x229 | 21897 bytes |
|
Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact entropy is 7.84, consistent with packed or encrypted content.
|
|||
Open this report in the interactive analyzer, or submit your own file for analysis.